bifacial TOPCon cell

This example defines a bifacial solar cell concept, typical for an industrial n-type TOPCon solar cell. It shows how to add a ploy-Si layer on top of a lumped skin to account both for parasitic absorption (FCA + band-to-band) and lateral conductance.

Another settingsfile is included showing how the extended Basore model describing bifacial optics in Quokka3 can be calibrated by fitting meausured reflection and transmission for front and rear illumination.

Image taken from: Chen et al., Mass production of industrial tunnel oxide passivated contacts (i-TOPCon) silicon solar cells with average efficiency over 23% and modules over 345 W, PIP 2019.